@misc{indiciaeef9dfe1b4ae0,
  title = {History of the recommended atomic-weight values from 1882 to 1997: A comparision of differences from current values to the estimated uncertainties of earlier values},
  author = {T.B. Coplen and H.S. Peiser},
  year = {2009},
  doi = {10.1351/pac199870010237},
  url = {https://pubs.usgs.gov/publication/70020901},
  note = {Source identifier: 70020901}
}